Trolley-head.



' M. H. KASHIAN.

TROLLEY HEAD.

APPLICATION FILED NOV. 19, 1914.

Patented Aug. 21,1917.

mamas.

' MINAS I-I, KAS'HIAN, or AMESBURY, MASSACHUSETTS.

TBOLLEY-HEAD.

Specification of Letters Patent.

Application filed November 19, 1914. Serial a... 872,897.

To all whom i tmay concern:

Be it known that I, Mil tias KAsHIAN,

a citizen of the United States, and resident of Amesbury, county ofNorfolk, State of Massachusettsnhave inventedan Improvement-inTrolley-Heads, of which the following description, in connection withthe accompanying drawings,is a specification, like letters ontllGydI'tWlIlgS 1 representing like 1 the use of a comparatively smallwheel and to provide a construction which will enable the wheel to bequickly and readily detached and attached and which, also, will serve asa guard for the wheel and provide a lubricating: reservoir' for theaxle.As is well known, the wear on a trolley wheel is so great that suchwheels require to be constantly renewed. Such wheels have usually beenof relatively large diameterto provide a deep groove or high flanges tofit about the trolley wire and prevent the trolley running off the wire,as well as to secure a large current conducting area from the wire tothe wheel. In my present invention, however, I utilize a wheel of verysmall diameter, so that the expense of renewal is reduced to a minimumand so construct the support and guard for the wheel as to act partiallyin the place of the deep flanges in the old trolley wheels, to preventthe trolley running ofl the wire. This feature is of special importanceand furthermore enables a strong solid support for the wheel to beeconomi cally made- Other novel features of the invention and details ofconstruction will be hereinafter more fully pointed out and claimed.

. Referringto the drawings, t

Figure 1 is a side view of my improved trolley head; i i Fig. 2 is anenlarged cross sectional view on the line 2-2 of Fig. 1; a

F 3 is a longitudinal view, partlyin section, of the trolley head, asillustrated in v Fig. l; and

Fig. 4 is a detailed view of one of the bushings for the axle. a

I prefer to form the trolleyhead 1 so that it may be fitted on to thesupporting trolley rod 2 and secured by a set screw 3 or the like. Thehead 1 constitutes themain sup- Patented Aug. 21, 191" porting memberfor the wheel and axle, and I is adapted to receive the guard and cover.

4, which may be dovetailed to fit around the part 1 and to hold the axleof the'wheel in its bushing. Both the parts 1 and4 are slotted at 5 and6 respectively, to receive and partially inclose the wheel. 7-, Anysuitable dovetailed connectionbetween the top 4 and part l may beprovided, that herein shown consisting in a forwardly and upwardlyextending flange 8 on the part1, having a central recess therein, toreceive the correspondingly formed projecting portion 9 of the outer endof the top 4 (see Fig. 3), and atthe front of the head 1 is a recess 10to receive a correspondingly formed projecting lug 11 on the under sideof the top 4 adapted to fit therein. A rotatable spring locking member.12 is also provided to hold the parts 4 and 1' in assembled and lockedthe spring. 12 being retained on the memher 1 by a headed bolt13 looselyfitting in a bored socket'14 through the part 1 and carrying a pivotedcam shaped member 15 on the opposite end. The cam limay be manipulatedto release the holding tension of the bolt 13 on the spring 12 andthere-I upon the spring member 12 is partiallyrotated to free itsoverlapping part (see Figs. 1 and 3) from engagement with the top 4,when the latter may be instantly detached to permit removal of the wheel7. The part 1 is formed with semi-circular sockets 16 for the axle 17,and the top 4 isfcorrespond position, i

. portion of each bushing, however;eompiete;

. thus retain these bushings inplace;-

wa'rdl'y to permitthe oiljtofiowtotheaxle- 17. In order to prexjent-"too great a flow of oil, I preferto slightly'recess' the projectingw uiseep fr m The recesses in the top 4 for the bearings of the axle '17are formed with projecting portions 21 adapted to fit within the cut 1away'part of the bushings 1 9 and 20, and

projecting portions 21 and the width the recesses in eaclr'-"-'busl1ingis" preferably" so rented toperrnit the bushing to lieflush with theouter surface of the axle and each ad'j acentpart of the'jou rnalhearings in the parts 1 and l, as well asfto' constitute rinr bearin onthe' inner' side for the hub 22 of the W1? In order to providelubricationgil recess eel 7 aslearly shown irrFig-Q:

the upper nienrbe'r' '45 either" side of the slot 6 and over the journalbearings; indicated at 23 and" 242', boringsmall' on ports 25 downpait'se i, as i'nfd ated ates mate fit therein ateXtile paeki' 0 recesses23"and'24; through the ports '25 on; tosaid packing from whencelit willbe taken up directlyby the retatin 'ane 17:- l r l Itis arr importantfeature of my presenttr'dlley "headto'fenable a wheelof relativelysmall'diameter tobeutili'Zed which will beless expensive to manufactureand when worno'utcan be repladedat a-ininimum loss.

To this end I'prefer tor0rn1t11e1to member the upper portion ofthe wheel7, as a guard Fig. Qgithe upper part rthe portion l or shield "for thetrolley and the wire 'on' which it runs-,'s'o as' to preventthe trolleyfronrleav'ing the wire, and'to thus provide as deepa recessor,'conversely, as widely extending flanges, asxperience provesdesirable. In former trolley wheel constructions 'the'se'fprotectingflanges were on the trolley wheelitself, and henc'e' were.discarded whenthese protecting'fianges are on the fixed guardor head and take thelace, of the flanges" on ai'wheel. clearly shown in provided withupwardly extending. portions 28 and qrojec'tin'g-b'eyond theperiphery ofthe" wheel 7, anidjhaving beveled faces 30' and 31 respectively.Preferablythesje bevsled-faces will extend over the adjacent edgesoff'fthe' wheel '7 and may constitute racticall a "continuation of theintern-a1 The "I 27 through which the oil' groove 32 in said wheel. Thisgroove may thus be made very shallow and the beveled faces 30 and 31take the place of long flanges and prevent the trolley. from leaving thewire when going-around curves, jumping or the like. Ordinarily the wirewill run smoothly in the shallow groove 32 and no friction between thewire and the beveled faces '30"and3l \vi'll'resul't, although should anyfriction occur it will be so slight as to be negligible.

I prefer to form the cam member 15 with an extended arm 83, which mayact as a springbruslr of appropriate length and contour to just fitwithin the shallow groove of the wheel 7 and will thus act not only tolock the cam 15' in the desired position when the plate 12 is undertension, but will also serve as an additional brush to aid intransferring current from the wheel to, the head. This provision ofmeans to apply b'rus1rdirect1y to the periphery of a wheel is,believec'ltdbe' distinct novelty and is one of the advantageousfeatures obtainable in my present invention where a trolley wheel ofrelatively small diameter is employed. Furthermore in'yinventior'i'enables a small wheel weighin approximately iths of a pou'n'd to act'f'as ei iciently as the large wheels at present iii-use, weigliing'over 3 pounds and of proportionately greater cost, the necessity ofmaking such ol d wheels of larger diameter to' provide deep flangesbeing obviated by my construction. 1 I may" form the top portiont'carr'ying the" guard flanges 2 8 and 29 of hard steel to resist. anywear which may occur through the Contact therewith of the trolley wire,while the lower portion 1 preferably is'inade of soft malleable iron toconstitute a strong support and good conductor of electrical energy.Furthermore, the lubrication provided by simple cored oil reservoirs 23and 24, and the removable bushing members 19' and 20 also enable aconstruction to be employed which has a minimuin-of partsand is of greatsimplicity, being' all looked in assembled position by merely clampingthe two sections 1 and & together.

Having described my invention, what I claim'a's new and desire tosecureby Letters Patent is:

1. In an apparatus of the kind described, a trolley head, comprising twoseparable parts'adapted to clamp the axle of a trolley wheel betweenthe1n,'and interlocking means tohold said parts together,one part havinganoil recess, means to feed oil to the axle, a bushing for said axle andinterlocking means between said parts and thebushing to hold saidbushing in non-rotatable positionJ 2. In an apparatus of the kinddescribed, a trolley head, comprising two separable parts adapted toclamp the axle of a trolley In testimony whereof, I have signed my Wheelbetween them, one of said parts hav name to this specification, in thepresence of 10 7 ing 21151 depending lug, a removable bushing tWosubscribing Witnesses. for t e axle havin a recess t0 interlock with 5the said dependin g lug, and means to hold MINAS H said separable partstogether, whereby the Witnesses: bushing is secured on the axle innon-rota- J AMES R. HoDDER, table position. v p n n R. G. HERSEY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Eatents,

Washington, D. C.

